Unit 1 Review

Which of the following options best describes the relationship between cells and living beings in general?

• The larger the living being, the larger its cells.

• All living beings are composed of one or more cells.

• The number of cells in all living beings is the same.

• There is one type of cell from which all living beings are made.

Tags

NGSS.MS-LS1-1

Which of the following statements is TRUE about cells?

• Cells are composed of smaller living things called organelles.

• For something to be alive, it must be composed of many cells.

• Cells are the smallest unit that can be considered alive.

• Only groups of cells that work together are truly alive.

Tags

NGSS.MS-LS1-1

What type of evidence should be collected to support the idea that all living things are composed of cells?

• Comparisons should be made between non-living and living things to determine any similarities in their structure.

• Samples of many types of living things should be examined under a microscope to identify the presence of cells.

• The functions of the cells of many different living beings should be monitored to see if they are identical.

• Non-living things should be examined to verify that the smallest parts they are composed of are not cells.

Tags

NGSS.MS-LS1-1

The students examined the smallest structures of living and non-living things. Which of the following observations provides evidence that the smallest parts of living things, and not non-living things, are cells? The smallest parts of living things -

• are closely packed with almost no space between them.

• perform life-sustaining functions, such as respiration.

• are uniform in size and structure.

• cannot be seen with the naked eye, but require a microscope.

Tags

NGSS.MS-LS1-1

How does the structure of the cell membrane contribute to the overall function of the cell?

• Keeps the organelles in place.

• Contains small openings that can store the water the cell needs to survive.

• Transports signals from one cell to another, allowing cells to work together.

• Allows certain substances to pass in and out of the cell.

Tags

NGSS.MS-LS1-2

How are the different parts of a cell, called organelles, beneficial to the cell?

• The parts require nutrients to function properly.

• The various organelles increase the energy used by the cell.

• The functions of the cells are controlled by genes.

• Each part performs a unique and necessary function.

Tags

NGSS.MS-LS1-2

In plant cells, how are chloroplasts and mitochondria related?

• Chloroplasts make food; mitochondria break down food and convert it into energy.

• Chloroplasts package nutrients; mitochondria deliver nutrients to other parts of the cell.

• Chloroplasts absorb water from the surrounding tissue; mitochondria store water.

• Chloroplasts direct the functions of the cell; mitochondria deliver messages to all parts of the cell.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-7

Students are comparing the parts of a cell with the parts of a city. Which of the following would provide the best comparison with the nucleus of a cell?

• Power plant - provides the energy needed for all parts of the city

• City hall - directs the necessary activities throughout the city

• Waste management - collects and disposes of waste

• Border patrol - regulates what enters and leaves the city

Tags

NGSS.MS-LS1-2

The general shape of a plant cell is most directly related to which of its parts?

• Mitochondria

• Cell wall

• Cell membrane

• Chloroplasts

Tags

NGSS.MS-LS1-2

Which of the following will be the most similar?

• Two cells in the same tissue

• Two tissues in the same organ

• Two organs in the same system

• Two systems in the same organism

Tags

NGSS.MS-LS4-2